RNGdle

Guide

Number patterns

Reference pages for the patterns behind RNGdle rolls — definitions, examples, and how many values fit between 0 and 1,000,000.

How to use it

Open a topic, read the rule, skim the examples. When you want a full EP breakdown for one number, use the calculator. For unlimited practice, try infinite.

Ready for the real thing? Play the daily roll.

FAQ

What does this guide cover?
Five number patterns that show up in RNGdle rolls: palindromes, powers of two, factorials, Harshad numbers, and semiprimes.
Do the rules match the daily game?
Yes for Palindrome, Power of Two, Factorial, and Harshad. Semiprimes are documented here even without a dedicated badge.
What range do the counts use?
Everything is limited to integers from 0 to 1,000,000 — the same domain as a daily roll.